class X4ss

# File lib/x4ss.rb, line 14
def initialize(savefile=nil, mouse: false, window: false, debug: false)

  @file = savefile
  @count = 1
  @mouse = mouse ? 'm' : ''
  @blob = []
  @mode = window ? :window : :fullscreen
  @debug = debug

end

# File lib/x4ss.rb, line 27
def capture(mode=@mode)
  
  blob = screenshot(mode)
  
  if @file then
  
    File.write @file % @count, blob
    
  end

  @count += 1    
  @blob << blob

end

# File lib/x4ss.rb, line 42
def from_blob
  @blob
end

# File lib/x4ss.rb, line 46
def record(interval: 1, duration: 6, mode: @mode)
  
  return 'interval must be 0.8 or greater' if interval < 0.8

  t = Time.now

  while(Time.now <= t+duration) do

    puts 'time: ' + Time.now.inspect
    @blob << screenshot(mode)
    sleep interval
    yield(@blob.shift) if block_given?

  end

end

# File lib/x4ss.rb, line 63
def save(file=@file)
  
  @blob.each.with_index {|blob, i| File.write file % (i+1).to_s, blob }
      
  :saved
end

# File lib/x4ss.rb, line 72
def screenshot(mode=@mode)
  
  area = mode == :fullscreen ? 'f' : 'w'
  
  `xfce4-screenshooter -c#{area}#{@mouse}`
  `xclip -selection clipboard -target image/png -out`    
  
end